only the first statement is true - it is the experimental probability. the rest is incorrect: the ratio is not the number of trials; the theoretical probability should be 0.5 (for unbiased coins); ratio never represents a number of occurences.
Answer:
33
Step-by-step explanation:
45 is half of 90
So straight away go to 45-12
33
Hope this helps
-GoldenWolfX
Where is the persons info
25 dollars per hour should be the correct answer
Substitue y=3x into the other equation to get 3x=-x+4. Solve this to get 4x=4 therefore x=1.
knowing this, y=3